My guess is red-shouldered. Here in Central TX they hunt behind my home regularly. When one, or a mated pair, come in my feeder birds: cardinals, sparrows, finches, WWDO, MODO, starlings, etc. just go about what they were doing before arrival. A coop of sharpie? Scatter city, except, maybe, on occasion, a WWDO will just sit still, mid-city tree, and the accipiter misses it. Dumb dove or dumb raptor?